Managing Databases with Oracle
Which of the following is not true of SQL views?

Oracle views cannot use the ORDER BY clause in view definitions.
Oracle views are created using the standard SQL-92 CREATE VIEW command.
Oracle views can by queried.
The SQL-92 standard does not allow the use of the ORDER BY clause in view definitions.

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Managing Databases with Oracle
An Oracle System Change Number (SCN):

is incremented whenever a deadlock occurs.
is a value that keeps track of explicit locks.
is a value that is incremented whenever a dirty read occurs.
is a value that is incremented whenever database changes are made.

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